V8 "Horizontal" Wire Loom Kits allow wires to be run horizontally to the valve cover, showing more of the wire set. They fit valve covers with center bolts, such as late model Chevrolet, but require longer valve cover bolts (not included).

V8 "Vertical" Wire Loom Kits allow wires to be run vertically--close to the valve cover and away from exhaust manifold heat. They fit applications where valve covers are held on with outside fasteners.